Hydrilla

QUICK IDENTIFICATION

  • Female plants produce tiny white flowers that float on the surface; male plants produce tiny green-white flowers that break loose and float.
  • Stems are submersed and slender
  • Leaves in whorls of 3 – 10 around the stem with rough edges
  • Length of up to 25 feet

Weed Pictures



Weed Information


Type Information
Toxicity Non-toxic
Control Drawdown of water levels, mechanical harvestors, biological and aquatic herbicide. Contact your County Weed District or local applicator for more information.
Habitat Springs, lakes, ponds, marshes, ditches and rivers
Root Extensive root system
Leaf Shape Small, lance-shaped with pointed tips
Lifespan Perennial; two years or longer
Priority 3 Weed Not a noxious weed, but a regulated plant; potential for significant negative economic and ecological impacts.
Similar Looking Plants Brazilian waterweed and Elodea
Important Information Mainly reproduces and spreads by fragments; and roots are dormant and viable in the soil for up to eight years.
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